Yu Company
Several Sales Transactions and Purchasing Activities for Yu $\quad$

Yu Company
Several sales transactions and purchasing activities for Yu Company are described below.Yu Company uses a perpetual inventory system.
A) $\quad$ Yu Company purchased merchandise from Mia Company on credit.
B) $\quad$ YuCompany retuned to Mia Company defective merchandise before payment is made.
C) $\quad$ Yu Company pays for the merchandise purchased from Mia Company.
D) $\quad$ YuCompany sells merchandise to its customers for cash and on credit.
E) $\quad$ Credit customers returned merchandise to Yu Company for a refund.
F) $\quad$ Credit customers pay their account balances to Yu Company. Refer to the information provided for Yu Company.For each of the items above,describe its economic effects on the company's accounting equation.